<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/student/update">
    <input type="hidden" name="id" th:vaLue="${stu.id}">
    姓名: <span th:text="${stu.name}"></span><br>
    生日: <span th:text="${stu.birthday}"></span><br>
    电话:<input type="text" name="phone" th:vaLue="${stu.phone}">
    <input type="submit" value="提 交">
</form>


</body>
</html>